Pacer RG8XW Coax Cable - White - 200' [MRG8XW-200]RG8XW Coax Cable White 200' Coaxial cable RG8XW is used in the transmission of communications signals. Frequently, audio, video, or network signals. You will recognize these cables if you have looked at the back of your cable box or modem. Most people don't even know that the real name of these cables is actually coaxial. Many people call them coax. So, what does coax, or coaxial, mean? The term coaxial means the cable has two concentric conductors